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Roxtec is the world’s largest manufacturer of modular-based cable and pipe transits. Roxtec sealing solutions are used by leading players in the offshore industry to ensure optimal safety and long-term operational reliability.
Sealing technology with Multidiameter™
Roxtec was founded in Sweden in 1990 with the invention of Multidiameter, a flexible solution based on sealing modules with removable layers. It revolutionized the complicated process of cable and pipe installation, allowing designers and users to perform their tasks without knowing the size or number of cables in advance.
The technology enables the sealing of cables and pipes of various sizes and materials, which minimizes the need for different parts and reduces installation time. It makes planning easier and simplifies the work of designers and installers.
Cable and pipe sealing system
The Roxtec sealing system is a modular-based mechanical sealing solution. It is available for various applications – and for multiple as well as single pipe penetrations. With six basic sealing blocks, it is possible to seal cables and pipes from 4mm to 99mm in diameter.
The sealing modules are inserted around the cables or pipes in frames that are either welded or bolted into the structure. The frames are available in different shapes, materials and sizes for different applications. The system is then sealed with a compression unit, a Roxtec wedge, tightly compressing the modules.
The Roxtec sealing system is used to seal all types of penetrating cables and pipes passing through walls and floors on platforms as well as bulkheads and decks on other offshore units. The seals are used between different sections and constructions, such as machine rooms, storage rooms, living compartments and the bridge. They are also used in various types of cabinets and enclosures. The sealing system is designed to withstand very tough conditions.
Sealing system with fire, jet-fire, water and gas-pressure protection
Roxtec seals ensure protection against fire, jet-fire, water and gas pressure or explosions as well as electro-magnetic interference. The system is well suited to seal hydraulic pipes, since the rubber absorbs vibrations and reduces noise.
Roxtec products are tested and approved for use in A class and H class-rated sections according to IMO Res. A.754 (18) and SOLAS. Roxtec products are certified by a wide range of classification societies such as Lloyd’s, ABS, Bureau Veritas and DNV.
Pipe and cable sealing system benefits
Roxtec’s pipe and cable sealing system has the following benefits:

Safety ensured - the high quality seals protect against fire, jet-fire, water and gas pressure and against risk of explosion and electro-magnetic interference
Less stock needed - Roxtec transits are extremely flexible and have the capacity to handle cables and pipes of a wide range of dimensions; this minimizes the number of items as well as the need for stock and also simplifies logistics
Quick and easy installation - there is no need to know the exact dimension of each cable, and since each module can handle a variety of cable sizes, the installations can be finished right away; the wedge, which is used to compress the modules and close the penetration, is quick and easy to install
Forward thinking - thanks to the Roxtec invention Multidiameter, it is possible to add extra capacity from the start; new cables or pipes can easily be added without adding any further items or any need for welding, and the seal can be re-opened and closed repeatedly without jeopardizing integrity or safety

Worldwide customer support
Roxtec serves and supports customers in more than 70 markets through 14 subsidiaries and a network of local distributors. Roxtec’s sales and support staff around the world help customers find the solution that corresponds to their specific needs. The extensive R&D resources of Roxtec, with design departments and test labs, give the company an opportunity to continuously perform tests, develop products and improve solutions.
Contact Roxtec International regarding technical specifications, design assistance, product enquiries, deliveries and installation training.